SSC JE Electrical 2018 with solution SET-1
 Which one of the following is a passive element to an electric circuit?

Voltage source
Current source
Resistors
Battery

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SSC JE Electrical 2018 with solution SET-1
 A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

450 W
350 W
300 W
800 W

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SSC JE Electrical 2018 with solution SET-1
 On which of the following parameters the eddy current loss occurring in a material does not depend?

Magnetic flux Density
The frequency of variation of flux
Susceptibility
The volume of the material

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SSC JE Electrical 2018 with solution SET-1
 A 3-phase star connected system is supplied by a line voltage of 440 V. The value of the current is 50 A. What is the power (in kW) consumed by the system, if the current lags the voltage by 45 degrees?

26.94
47
8.95
24

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SSC JE Electrical 2018 with solution SET-1
 In cables, the thickness of the layer of insulation on the conductor depends upon

Current carrying capacity
Reactive Power
Power Factor
Voltage

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